It's really hard to do, I find.
Someone recommended a book called "Man's Search for Meaning" by Viktor Frankl.
Also, for me, touch is important... such as cuddling and petting my cat or getting a massage.
I guess I've always been an existentialist, to my detriment.
This is an interesting article about existentialism in children:
Existential Depression in Gifted Children - Sofo Archon