Poetry:

Khalil Gibran

Rabindra Nath Tagore

Kabir

Ancient Hindu philosophy:

Upanishads (a treasure cove I hit upon recently! )

Osho literature

J Krishnamurti

Dhammapada

New Age:

Deepak Chopra

Fritz of Capra

I very interesting link on broad class of Indian writings and traditions:

Some of my favorite books in literature:

The Prophet: KG

Le Petite Prince: Herman Hesse

The Golden Gate: Vikram Seth