Personal statement is the only part of the application where the student have a chance to select and emphasis about him/her self.

The student should say something about the below in the Personal statement

Your career aspirations.
Your reasons for choosing the course.
The name of any sponsor you may have. Relatively few students are sponsored through their course and you will not be at a disadvantage if you have nothing to include in this section.
Institutions are keen to know, however, if you have been able to secure this form of financial support. If you have applied for sponsorship but do not yet know whether you have been successful, say where you have applied.
Relevant background or experience, which may include work experience, or work
shadowing, practical activity in music or theatre, attendance at courses, time abroad.
Any interest, including sports, you may have which are not strictly relevant to the
course, but help to give an impression of you as a person.

Some Tips:

Think about the impression you want to give.
Organise the material.
Write very clearly, and don't try to pack too much in.
Only put in things you are prepared to talk about at interview.
Check the spelling!
Don't repeat material that already appears on the application form.