What all this symbol represents?
From the head
the sun सूर्य
The warm half of hatha, the 'ha'. It sits above everything else in the mark
bindu बिन्दु
The dot of the chandrabindu. In many Indian traditions the bindu is the seed from which every form unfolds.
the head
held quietly upright, resting gently on the spine.
From the stalk
the spine मेरुदण्ड
This stalk is the merudanda, the spine. The leaf's long tip carries it up toward the crown.
roots
It is also a root, reaching down into the ground we sit on, so the figure grows out of where it rests.
From the leaf
the peepal leaf अश्वत्थ
The tree the Buddha sat beneath. In the Gita, Krishna says that among trees he is the ashvattha.
body
The leaf is also your torso: broad at the hips, narrowing toward the crown.
a flame दीपक
The flame of a diya - the Bhagavad-Gita likens a settled mind to a lamp in a windless place, which does not flicker.
From the veins
the nadis नाड़ी
The veins are the nadis, the channels the breath & blood move through.
prana प्राण
Breath, moving from the centre out to the very edges of the body.
From the curve
the moon चन्द्रमा
The crescent is chandrama, the cool half of hatha, the tha, held beneath the sun.
crossed legs सुखासन
Folded in sukhasana, the posture of relaxation, for meditation and pranayama.
the earth पृथ्वी
And the ground itself, the earth we sit on, which holds everything above it.
All of it together
a person in meditation ध्यान
Put together, the marks are a person sitting in meditation: a head, a spine, a body, crossed legs.
the candrabindu अँ
The moon symbol with a dot, written above a letter so the sound rings on through the nose. It sits at the top of ॐ, too: the crescent and the dot above the sound of everything.