Even though he was born in Morocco, his compilation was eagerly accepted by the leaders of the Hassdic movement in Europe, who saw it as fundamental to their ideology. They encouraged intense study of this work, distributing it in print, and believed it to be a charm for many things, amongst them fertility and childbirth.
The name of the work is explained in its introduction, "for the Torah is called light (o'hr)...and because there are many things which give off light - such as candles, and the sun, moon, and stars - we call it [the Torah] O'r HaChaim. This name relates to the Creator, who is called Life (Chaim), as it is written 'and the King of Life', and the Torah is called Life (Chaim), as it is written, 'The Torah of the wise is the source of Life', and the Righteous as well are called Life (Chaim), as it is written, 'and all of you who cling to G-d...are all Alive (Chaim)."
The application does not require an Internet connection.
Please share and rate.