There are two aspects to your profile; a section where you describe yourself, and another section where you can describe the type of partner you're looking for.
There are a lot of different options and characteristics that you can specify. Once
you have filled in your profile completely, you have access to three default
Who am I looking for: This will search for all members who match the criteria that you have specified in your profile, but you may not necessarily match their criteria.
Who's looking for me: This will find all users where you match what they are looking for, however they may not be what you are looking for.
Pure Match: This locates all users who match what you're looking for, and you
also match what they're looking for, thus ensuring the maximum level of compatibility.
WHAT IS A 'PURE MATCH'?
A Pure Match is a member who matches exactly what you have specified on your
profile that you are looking for as a spouse, and you also match what they have
specified in their profile