If the whole universe can be found in our own body and mind, this is where we need to make our inquires. We all have the answers within ourselves, we just have not got in touch with them yet. The potential of finding the truth within requires faith in ourselves.
"Wholeheartedly" means that we give our time, love, and energy unstintingly.
A truly happy person is someone who is joyfully independent of outer conditions.
Mindfulness is a mental activity that in due course eliminates all suffering.
If we do not try, we will not know.
It is often thought that the Buddha's doctrine teaches us that suffering will disappear if one has meditated long enough, or if one sees everything differently. It is not that at all. Suffering isn't going to go away; the one who suffers is going to go away.