Mukula means a Bud. When all the five finger are brought together and touch each other at the tip, we get the Mukula hasta.
Lets see what the viniyaga shloka has to say :
kumude bhojane panchabane mudradidharane
nabhao cha kadalipushpe yujyate mukulah karaha
This sloka talks about the various uses of Mukula. It can denote the following :
- A lily flower
- Eating
- Manmatha with his arrows. (God of love or the churner of hearts)
- Holding the Signet
- Navel
- Flower or a Bud
a very emprisive hand gesture