Worships Effect On Personal Perfection Sincerity Warning

How worship is the cause of personal attainment and perfection:

Consider this: together with being physically small, weak, and powerless, and being one of the animals, man bears within him an exalted spirit, and has vast potentiality, unrestricted desires, infinite hopes, uncountable ideas, and unlimited powers, and he has a nature so strange he is as though an index of all the species and all the worlds. As for worship, it expands his spirit and raises his value; it causes his abilities to unfold and develop, allowing him to become worthy of eternal happiness. Worship is also a means of rectifying and purifying his inclinations, and of realizing his hopes and making them fruitful, and of marshalling his ideas and setting them in order, and also of reining in and limiting his [three] powers [of appetite, anger, and intellect]. Worship also removes the rust of nature from his members, physical and spiritual, each of which when transparent is like a window onto his private world and that of humankind. Also, when performed with both conscience and mind and heart and body, worship raises man to the dignity of which he is worthy and to his appointed perfection. It is a subtle, elevated relation, an illustrious lofty connection between the bondsman and the One Worshipped. This relation constitutes the utmost degree of human perfection.

Sincerity in worship is this, that it is performed only because it is commanded, although it comprises numerous instances of wisdom [and benefits]. Each of these may be a reason ('illa) for performing worship, but sincerity makes it imperative that the [true] reason be the command to perform it. If the wisdom or benefit is made the reason, the worship is null and void, but if it merely encourages the person to perform the worship, it is permissible.