The logic behind the question that is mentioned regarding the Trimurthy couples.

I would request you to consider this as my perception but not my definitive Derivation.


Here is my interpretation

Lord Brahma and Mata Saraswathi.:

Brahma represent “G” in GOD, where “G” stands for Generator. Creation is his duty. Saraswathi is goddess of Education. We know that Brahma has 3 heads.
So what we can decide by below expression

Multiple heads (Thoughts/intelligence) + education = creation

The crux of the above expression is :
Brahma will be holding Vedas which represent Knowledge. For creation, one requires more heads i.e more intelligence so that we can think in different directions and interpretations. To create any thing, we need to tie up with education means Saraswathi. A Combination of the above two leads to Creation.

Lord Vishnu and Mata Laxmi Devi:

Vishnu -> Operation or Sustenance
In Brief : Vishnu stands for ‘O’ in GOD which means “Operator”. Vishnu represents Dasavatharams. Laxmi Devi is wife of Vishnu who also represents AshtaLaxmi..

There are Dasavatharams by Lord Vishnu. This means in life we need to play different roles. For example: Avatar of Lord Krishna we should lead life as war. Laxmi represents Money means it could be Crops (Dhanya Laxmi), Currency (Dhana Laxmi), Children(Santhana Laxmi)..,

So Laxmi and Vishnu derive:

Life goes well = we will play Different roles in life + Using different kinds of Money

Lord Shiva + Parvathi:

Lord Shiva holds “D” letter representing “Destroyer”. PravathiDevi represents Energy.

During death we will not carry any thing but only thing which remains is energy that is Athma or Soul.