(If you want to go directly to summoning an entity to aid you - skip this section and go directly to section 13 onwards).
As explained in the previous section. Negative entities such as Pretas or Asuras are beings that are immersed in a negative field (the Tala they exist in). So they have a tremendous amount of negative energy to dispel at your command, which can be directed at your enemies.
Aaiyyanists believe that negative energy causes illness, bad fate/destiny/Karma, financial worries, depression and other more serious conditions that will not be mentioned here. If you direct the entity you summon to attack your enemy they will use their reserves of negative energy to direct it to your foes. In return the link between yourself and the entity will grow and the period of the Tala being open will increase.
Likewise, you can also direct the entity to leech off your lower negative energies. This will allow you to have superficial success in this plane of reality such as having good luck, wealth, and power. Again the link between yourself and the entity will grow.
Warning: The transference of energy can be facilitated by how long the doorway between the Tala and this dimension remains open. Negative entities, such as the ones you will summon have a deep urge to enter our plane of reality. Once contact has been made with the entity you may find that your link with it becomes strong and certain things may happen such as you will feel the entity changing your perceptions of reality. This can effect things like your personality and mindset. Do not be alarmed however, as stated in several Aaiyyanist sources: the period the Tala and our dimension remains resonantly open is determined by how well the summoner (you) are linked with the entity you are trying to call. So allow yourself to become one with the entity and allow it to nudge your thoughts and bend your will. This is the price of linking with the entity and if you want the energy transference to be complete you must make this sacrifice.
Remember: the more you summon the being, the stronger the link between human and entity will become until eventually you will be able to see, speak and read the thoughts of the entity at will. This relationship will be reciprocal.