Does it Happens with you?

I cant live with music..Music irrespective of its genre makes me vivid and fully energized all the time . Actually it makes me fresh instantly no matter how fatigued I am.I also feel it has also contributed a lot in the way I behave .I owe my resiliency in character to music.

I have been listening to music for a long time now and after these many years .i find myself in a peculiar but feel-nice position.

I observe that certain songs makes me remind of a certain period of my life to a very accurate extent. Let me quote some examples:

• Rangeela:Tanha Tanha-STD XII
  
• DTPH: karisma song—BTECH 1^st Sem
• MLTR:Some day somewhere: 3^rd sem
• Taal: Nahee saamne tu—5^th sem
• Byran Adams: C’mon C’mon- 6^th Sem
• Meenaxi:Titli daboch lee meine-MBA -1st sem
• Kalyug: 'Juda hoke bhi tum ' 2005 mid
• ARR: Pray for me brother—2007 beginning

In fact the list seems to be increasing as I recollect more..When a certain even/action/thing connect your peripehral memory and gives you a blurred output of the time you encountered the given event/action/thing before then this connection is defined as ‘nostalgic’..But what if the same takes a central route and can make you to even identify the exact time line/period? Even I don’t have any nomenclature for this.But it makes me think for one crucial point..there are mystic chemicals in our brain which instir this activity.Ya,I know thoda zada ho gaya :0

• My curiosity is how does this association of a song with a certain period of time happens? Is this what we call as being Nostalgic? And does it happens to you as well??