I love this mudra (seal): the “three
finger technique” (thumb, index, middle). It is actually
called Kubera Mudra in Sanskrit. Mudras or seals are hand positions
which complete certain circuits in the body to create different
flows of energy.
I
use this mudra when I meditate on abundance and prosperity, and
as one of my friends Tony,
I feel a lot of energy flowing through my fingers and hands. To
me this mudra is one of the most powerful ones. Kubera mudra is
used for creating wealth and reaching your goals. Also it decongested
the frontal sinuses, which are connected to third eye (clairvoyance).
Remote viewing is also connected to the third eye.

A great affirmation while using this mudra is "I give
and receive the best."
Also fingers are associated with the 5 elements:
Thumb represents fire, index is air, middle is connected with
aakash (ether), ring represents earth, and the little one is water.
Where
these three (thumb, index, middle) fingers meet, lung, large intestine
and pericardium meridians end.
Regarding viewing ones aura remotely or non remotely this is my
personal opinion:
First
I do not recommend intruding into someone’s space by trying
to see his/her aura without asking for permission because seeing
someone’s aura is very personal and private, it is like
looking very deep inside ones soul. If aura comes to you instantaneously
that means you already have permission and there is a connection
between you and the one you look at.
Usually
aura comes to me when I am supposed to see it.
I really liked one of my yoga teachers and despite asking permission
to see her aura I could not see it. That doesn’t mean something
was wrong with the teacher. I had to go through other teachers
first and when I was ready to learn from her, the aura came instantaneously.
“When the student is ready the teacher will appear“-
rings so very true to me.
I
choose my teachers by looking at their aura, it usually comes
to me. I don’t have to ask permission or look for it. Their
aura is usually golden - yellow and very radiant.
When
someone asks for help (healing, remote viewing etc), that’s
another story, you automatically have permission because they
asked for help.