The Age of Pisces may began between 5 BC-5 AD - when Jesus Christ, son of God according to Christianity, was born. The symbol of Christianity in Roman and Greek times was the fish, the sign Pisces is a fish. However, as the age progressed for 2,000 years, Pisces as a sign of bondage meant Christianity ruled Europe like a dictatorship, only to decline in phases in the last 200-250 years, and now in the Aquarian age, church/religion and state/government are more separate entities in the free, developed or western world nations. Perhaps we're in a Capricornian age instead, because of all the scientific advancements made, and space travel began between 1950 and 1960 AD.
I don't see Pisces as a Sign of bondage, but one capable of a deep connection to the spiritual world. There were and are Christians and those of other religions capable of that. The bondage you mention was Mundane oppression, nothing to do with spirituality, but masquerading as such. So, rather than say it has to be one way or the other, it's two separate types of Earth-effects, a Mundane-effect that can be determined Astrologically using the Tropical-zodiac, and the other a Spiritual-effect using Sidereal.
The timing is vital and yet confusing, both because of the one-Sign Age-overlap, and the late blooming nature of the Tropical, Cardinal-sign Ages. The third Decant of the Capricornian Age is when the Age began showing its true nature in the 16th Century. That's when ENTIRELY non-Spiritual, Capricornian, Modern-science began developing. Since this could hardly be attributed to an Age of Pisces, and no Tropical Age-method was considered as a factor, the only possible explanation was that the Aquarian Age was inexplicably coming on WAY ahead of schedule. Even though Aquarius is itself spiritually oriented in its own manner, and is a very humanitarian Sign, now it was Aquarius that was blamed for the World Wars, just as Pisces has been blamed for things like the Inquisition and the burning of "witches". I'm not blaming Capricorn. I'm blaming its disastrously unfortunate Rulership, in the context of the incredibly long-lasting Age. The technology of this Age isn't about lightening, it's about putting electricity to work in technology. And, it's about explosives and the power achieved using combustion. Ten converts to One in base-10 Numerology (1+0=1), which is symbolic of the conversion of Matter, from 10th Sign Capricorn's Earth-sign quality, into Energy, from the Fire-element of Ist Sign Aries. This brings in the Saturn-Mars Axis of Rulership for the Age.
Capricorn is a civilization-BUILDING Sign, but what it creates is ALWAYS under serious threat from the Saturn-Mars Axis. But Capricorn's intentions are good, and if unimpeded by Saturn, would create a true technological utopia.
Once more, Cardinal-signs are Innovative, and Earth-signs are materialistically oriented. So it's the Age of Capricorn that's behind all this new, amazing, materialistic Modern-technology, and it's USE (keyword for Capricorn) in UNIFYING (1+0=1) the world in a materialistic way.