Warning - Looking at the Sun is dangerous!
We all know this in the physical sense - looking at the Sun, even for a brief moment, can cause severe eye damage and even blindness. But the warning should be taken in a spiritual sense as well. Rambam, in the first chapter of his Hilchot Avoda Zara - the laws of idolatry, describes the great mistake perpetrated by people way, way back in the third generation from Creation, in the time of Enosh, Adam's grandson. Rambam adds that Enosh himself was among the "mistaken".
Rambam describes the "mistake" with a particular star or all stars; we would suggest that the Sun is the prime example of that which became an object of worship. The people reasoned that it is a way of honoring the king by giving honor to his chief ministers. So too, people thought that it would honor G-d, if they honored, then venerated, then worshiped the Sun. As the years went on, continues the Rambam, false prophets arose, temples were built, and religions established in which the Sun was THE object of worship and people forgot G-d. If you think about it logically, the Sun is a perfect candidate for being worshiped by people. Too powerful to look at, it radiates tremendous energy and light, and is a major requirement for life as we know it. Logical except for one thing: it is Avoda Zara, a capital offense, and the basis of denying or ignoring G-d. No small thing.
Yeshayahu did not tell us to lift our eyes heavenward and pay homage to the heavenly bodies; he said, lift your eyes heavenward and see (and ponder) who created these.
Our Sages could have composed a bracha for us to recite every morning at sunrise. They didn't. They could have opted for once a week - on Wednesday, perhaps, the day of the week the sun, moon, and stars were placed in the heavens. They didn't. Once a year would also be a possible way to go. No annual bracha either. They did declare that once every 28 years, at the beginning of a cycle that began at creation, we should say a bracha.
And what bracha did they command us to say? Not a unique bracha perhaps mentioning the Sun. No, "just" OSEH MAASEI V'REISHIT. The same bracha we say on lightning or a shooting star. Events that can be every day experiences. Experiences that border on the commonplace and mundane.
But do not be disappointed in the choice of brachot. The bracha is not on the Sun. It is a blessing to, an acknowledgment of, and expression of gratitude to the only One we may worship. It's a bracha to the One who created the sun, and the moon, and the other heavenly bodies, all the animals and birds, et al - even the mosquito and every grain of sand.
Do not look straight into the sun. Neither physically, nor spiritually. You can be blinded in many senses of the word, G-d forbid.
Keep things in proper perspective and Birkat HaChama can be a special and meaningful experience. Ponder all of nature - not just once in 28 years, but every day - as the Creation of G-d and His gifts to us. Remember too that He is the OSEH - the continuous doer of MAASEI V'REISHIT. We are not dealing with a once-upon-a-time-a-long-time-ago thing. We are dealing with all of our past present and future.
The T'hilim and other passages that have become part of the Birkat HaChama "ceremony" will help with our KAVANA and appreciation. But so will our thinking, reflecting, pondering. Not just on April 8th but every day of the year, year in and year out.