This postcard was never mailed, so there is no personal story connected to it.

It was made in the United States, sometime before postal rates increased in 1918.

On the face, we have a gilt banner on which “POP” is displayed in letters formed from pansies.

A bunch of cut flowers (they may be poppies) are draped over the banner.

The printed words, “To my Dear”, lead to the floral “POP”.

The flowers are deeply embossed, which makes the reverse of the postcard difficult to address.

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It is not clear if the postcard was intended for a celebration of “Father’s Day”

National days to honor fathers have a long history throughout the world.

In Roman Catholic countries, fathers have long been honored on March 19 – the Feast Day of St. Joseph.

This tradition of Father’s Day was brought to the New World by Spanish and Portuguese immigrants, and was widely supported by the Franciscan Order.

In the Eastern Orthodox world, fatherhood was celebrated on the second Sunday before the Nativity as part of the honor accorded to the earthly lineage of Jesus.

The US has not promulgated an official national holiday as was done for “Mother’s Day”.

https://en.wikipedia.org/wiki/Father%27s_Day

We might assume that the postcard design delighted some collector, or that the postcard had been saved for a special occasion that did not arise.