Physical Manifestations, Utilizing Will Options

Lets say this is a given: someone I know is able to manifest small, organic, of-this-world, creatures when things get dire, or out of hand, or even excited (sometimes during hard concentration).

This person is interested in being able to control this manifestation through will, they have tried a sigil with no luck, and have memorized the creature's name in Latin, reciting that seems to narrow down the species when it happens but still has trouble doing it when they want it to. I don't expect a bunch of people to give useful information, or even believe me but my friend insisted I asked through here because I don't know any more advice I can give them. This person wants me to ask this question on my computer to keep things anonymous.

Greetings!
The key to this lies in the state of mind your friend is experiencing during the manifestations. It is a creative act. Sometimes we can 'work' ourselves up to this state but I think you'll find that the act comes from the 'creative flow' This act of creation has its trigger buried in the individuals psyche and will become easier when they learn to reproduce that trigger. Most often the creative flow cannot be summoned like an obedient pet but rather by aligning the emotions, desires, etc (components of the trigger) and letting the creative energies 'flow'. I cannot articulate this any better. As a materializing medium this control has eluded me save for extremely crude results (I have no idea what form will be manifested...though it usually can be (in)directly influenced by the situation(s) at hand). My blood sugar plummets afterwards as well. Make sure to have some hard candy available at all timres (lifesavers,butterscotch, etc.) Good luck...and you are correct to be quiet about this unless you like carny's or laboratories!

Using the Latin name is the same as 'naming' the object/thing...much literature has been written concerning this. It is a piece of the creative process and is very powerful.