Why is in the budda days, jhana seem so easily attainable but so hard now? As i read text from canon. It seem like in the budda day jhana was a lot easier and highly recommended for the fold path. But now it seem like this rare thing only a handful of people can attain. If it was so easy how can we find the path to enter it without all the complication?
All my teachers without exception said that the idea of "goal" that you are striving to "attain" is THE final obstacle to attainment.

To that aim, one is advised to completely eradicate the idea of goal from one's mind. As in, on the deepest emotional level you have to give up any slightest hope, dream, or intent to attain jhana - and keep meditating on the resulting state.