Does a person feel that his time is approaching before he dies?
Question

                My brother died in a catastrophic car accident when he was eighteen years old. We love him dearly and we want to benefit him in his hereafter. Can we do that, and will Allah accept righteous deeds from us that we do with the intention that they will be added to the balance of his good deeds? Is it permissible for our sister to fast on his behalf the days that he did not fast in Ramadan? Another question: my sister sees him in her dreams living in a verdant garden; does this indicate that he has entered Paradise? Before he died, my brother used to do strange thing, which suggests that he was aware that his time was almost up.

My question is: does a person whose death is near sense that his time is almost up before he dies?
Praise be to Allah.
    Firstly: 

    In the answer to question no. 763 we 
    mentioned the deeds that may benefit the deceased. These deeds may be done 
    in the hope that Allah, may He be exalted, will accept them, and on the 
    basis of thinking positively of Him, may He be glorified. But as for stating 
    definitively that these deeds will be accepted, no one can be certain of 
    that. 

    Secondly: 

    If your brother (may Allah have mercy on 
    him) did not fast during Ramadan because of an excuse such as sickness, 
    travelling or being unable to fast, and that excuse remained valid until 
    Allah took him in death and he was not able to make them up, then he does 
    not owe anything and his heirs do not have to make up these days when he did 
    not fast. 

    However, if he was sick with an illness for 
    which there was no hope of recovery, then in that case he came under the 
    same heading as an old man who is not able to fast, so poor people should be 
    fed on his behalf, because this is what was required of him when he was 
    alive, to feed the poor instead of fasting. 

    But if he did not fast for some legitimate 
    reason and he died without having made up what he could have made up when he 
    had the opportunity to do so, then his heirs may fast on his behalf. But if 
    he did not fast on some days in Ramadan out of carelessness and 
    heedlessness, and he had no excuse, then it is not valid to make up the 
    fasts on his behalf. 

    Please see the answers to questions no.
    81030 and 174581 

    Thirdly: 

    The fact that his sister sees him in her 
    dreams living in a verdant garden is a good thing, in sha Allah, and there 
    is the hope that he is blessed by that and that Allah has bestowed upon him 
    the favour of a good status before Him. But we cannot be certain about any 
    such matter. Dream interpretation is a vast topic and it is very difficult 
    to be certain of anything in that regard. But we should focus on the 
    blessing of Allah and the hope of His kindness and grace. 

    Muslim (479) narrated that Ibn ‘Abbaas said: 
    The Messenger of Allah (blessings and peace of Allah be upon him) drew back 
    the curtain and the people were lined up in rows behind Abu Bakr. He said: 
    “O people, there is nothing left of the glad tidings of Prophethood except a 
    good dream that a Muslim sees or that is seen for him. 

    In the answer to question no. 731 we stated 
    that the belief of Ahl as-Sunnah wa’l-Jamaa‘ah is that we do not testify 
    that a particular person will go to Paradise or Hell, except in cases where 
    the shar‘i texts affirm that. 

    With regard to some people sensing that 
    their time of death is near, this cannot be denied in general terms, 
    especially when there are signs that point to that, although no one knows 
    exactly when his time will be up or where he will die. Such matters are of 
    no great significance and have nothing to do with a person’s virtue or 
    status. Allah knows best what happens of such things. However we may be 
    definite about what we have said above, that no one knows when his life will 
    end or where he will die. Allah, may He be exalted, says (interpretation of 
    the meaning):

    “Verily, 
    Allah! With Him (Alone) is the knowledge of the Hour, He sends down the 
    rain, and knows that which is in the wombs. No person knows what he will 
    earn tomorrow, and no person knows in what land he will die. Verily, Allah 
    is All-Knower, All-Aware (of things)”

    [Luqmaan 31:34]. 

    And Allah knows best.