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These would be spiritual goals of the Sun.
Just keep in mind that the Sun is not normally "solemn". By its nature, it is a yang energy, and therefore involves action. This is different from Mars and Jupiter, but it is still not as tame as your words sound to me. This should not be feared/avoided, as solar energies are some of the most important, if not the top, natural energy within the universe. HPS Pythia mentioned the demons showed her the power of the Sun.
As HPS Lydia suggested, what you are asking sounds more like the Sun in Capricorn, although you can try both Squares, as the Sun in Capricorn will be much tamer regarding the traditional elements of the Sun. It is also important to note that if you want Capricorn-like traits, then just use Nauthiz instead of a Sun Square.
A human father is traditionally defined by the energies of the Sun, Saturn, alongside Mars, so that is why you might be trying to achieve a mixture of these characteristics, however it is better to use separate workings for this, in my opinion.
For an affirmation, you can just use something like "My [natal] solar energies have been permanently improved in the most positive way for me." This would give you the most of what you need, whether it is masculinity, personal expression, vitality, ability to make wealth, etc.
