How do we break an attachment with the Buddha Himself? We Buddhists talk about non-attachment in our relationships, but after breaking all the samsaric attachments, how do we break the last attachment with the Buddha and may be also His teachings?
When the Buddha said 'appo-dipo bhava' ('be a light unto yourself') is that what he is pointing towards?
For those attached to the form or personality of the Buddha, he taught to focus on the Dhamma (teachings) instead.
From Vakkali Sutta:

“For a long time, venerable sir, I have wanted to come to see the
Blessed One, but I haven’t been fit enough to do so.”
“Enough, Vakkali! Why do you want to see this foul body? One who sees
the Dhamma sees me; one who sees me sees the Dhamma. For in seeing the
Dhamma, Vakkali, one sees me; and in seeing me, one sees the Dhamma.