Begin with introducing yourself: name, age, qualification and experience.
(IF SPOUSE IS A STUDENT IN CANADA):-
Information about spouse name age qualification and the date of travel to Canada on a study permit. Mention the current status of your spouse that your spouse is a FULL TIME STUDENT in DLI. Mention the date when she began her studies. Mention that you are enclosing the documents like the ENROLLMENT LETTER from SPOUSE DLI stating spouse is ENROLLED in FULL TIME (GRADUATE )Study program.
Mention that spouse is away from you and both are depressed and you desire to stay along with spouse and work in Canada so that you support each other before you both come back to your home country.
Hope this will help many..... What I have mentioned in CAPITAL LETTERS is MOST IMPORTANT and the proof documents to be submitted for smooth processing