History tomorrow, a mystery today: This part suggests that the past (history) is something we can learn about and study, while the future (tomorrow) remains unknown and mysterious. We may have some expectations or predictions about the future, but ultimately, it's shrouded in uncertainty.
Is a gift that's why it's called the present: This part draws attention to the present moment and highlights its significance. The word "present" has a dual meaning here. On one hand, it refers to the current moment in time, which is fleeting and transitory. On the other hand, it alludes to the idea that the present is a gift—something valuable and precious that should be appreciated.
The overall message is that we should focus our attention on the present moment rather than dwelling on the past or worrying about the future. The present is a gift because it's the only time we have, and it's the time when we can make choices, create experiences, and shape our lives. By embracing the present and cherishing it, we can find joy, fulfillment, and meaning in our existence.