Arti is a very common and integral part of Indian culture. When we worship our different Hindu gods it is the most important part.  Aartis have been composed from approx the 12th century onwards. Various Indian saints and evolved devotees have composed these hymns. 
They are thereby making available a beautiful and easy medium for worshipers and enable them to invoke the grace and blessings of a Deity by offering Aarti. Singing an Aarti conceived with the resolve of Saints accomplishes these objectives. But when it is sung from the heart and as per the science of Spirituality you can gain positivity.

How to do aarti?

Many are not aware of various facts; for example, while offering Arti to God, one can move the platter in a clockwise circle from the anahat chakra (at the heart area) to the adnya chakra (mid-brow region) of the Deity or that one must perform circumambulation after Arti. If these facts are not known they will not be performed or will be performed incorrectly. In this special issue on Arti, one will understand how to perform all the actions pertaining to Arti as per the science of Spirituality. If everyone tries to perform the Arti with intense yearning and as per the science of Spirituality, then it will lead to an increase in collective spiritual emotion which will further activate the Deity’s principle and everyone will benefit from it. Similarly, the atmosphere will get purified and become sattva predominant.