May sound strange, but I think "I Shall Be Released" is one I wouldn't mind having sung at my wake.

"I Can Hear the Sweet Wind Blowing" is one I love. Such a simple and gentle leave-taking.

And lastly (and yes, I know all of these may be weird choices to many...

WHAT YOU GIVE ME
( Laura G. Lindgren)

To Walk in your forest, To graze in your pastures, To fly in your
   starry black night
Such is the garden, Such the devotion
Such is the fountain of love in my heart

To flow in your river, To gaze at your colours, To sway in your
    treetops so high
Such is the garden, Such the devotion
Such is the fountain of love in my heart refrain

1st bridge
What you give me is a doorway to God, let us bathe in the Now
Never grasping at the days ahead
Just a patience of the heart in the pastures of truth
And love, trembling love.

To let out your kite string, to feel your dark ocean, to play in the
    breakers at dawn
Such is the garden, Such the devotion
Such is the fountain of love in my heart


To shatter on your hard floor, to dance in your cobwebs, to sing the
    song of our death
Such is the garden, Such the devotion
Such is the fountain of love in my heart

2nd bridge
You are teaching me songs that I never dreamed of.
Opening worlds that I never hoped for
I'm breathing my breath, I'm dying my death
Sing that the world doesn't end.

To read your sad story, to bask in your glory, to sit in the presence
    of God
Such is the garden, Such the devotion
Such is the fountain of love in my heart

To know beyond knowing in the patience of being
beyond thought, beyond wanting to know
Such is the garden, Such the devotion
Such is the fountain of love in my heart