For the Lorcar themselves, sanity was a subjective concept. On a grand scale, technically speaking any individuality between any Lorcar is imagined. They act seperate, they even believe themselves truly to be...But honestly speaking, they are all pieces of Delton. Any Locust's mind rewritable, indeed, constantly rewritten. Abnormalities and Swarm-Destructive tendencies are not tolerated, and instead...Edited out when noticed...Which given that all Lorcar naturally hear one anothers thoughts, they very often are.
However, of course...This all is assuming the Lorcar could even see into a astral realm to begin with. With the Exception of the Brood King Delton, who houses their Soul, all Lorcar are entirely physical creatures. A portal, made by, for, and to a realm of astral beings, which is astral itself...Would probably be not only invisible to the Lorcar, but incorporeal as well.
Either way, losses would be largely minimal, as any aberrant thoughts would be rewritten to normal, and even if the Lorcar were to be banished it would at best be frigates, relatively small and insubstantial in the grand scheme of the swarm. Their minds wouldn't even be lost, just jacked from their bodies to storage space in the Hive Mind until a new body can be made for them. The Capital Ships and anything above, of course, were protected with not only their massive size and backwards motion to resist any tendrils of anything that might grip them from pulling them in, but Psionic Shielding besides, warding any non-Lorcar physical anything from getting through without a fight. The tendrils themselves may be only partially physical to begin with, but within the range of these shields they'd be Incorporeal at best.
And yet...Through the entire 'assault', the Lorcar barely fought back, regarding the tendrils(and really only maybe the portals/spirit realm yo begin with) as a nuisance or annoyance at best. They defended themselves with Psionic Wards and general dodging and evasion, but there was no counterattack against whatever did this. As the other storyteller recanting this tale said, these 'attackers'shields had no biomass to speak of. And their offensive was hardly damaging or really all that terrible. The fact was, the Lorcar COULD waste resources further agressing...Whatever the hell these were, or they could focus on whatever impending invasion force was obviously coming. The Swarm even suspected this as a diversionary tactic to begin with, a magic spell or psionic power meant to sow discord within the defender's lines. But as the Lorcar were instantly aware of one another's thoughts by mere proximity, knowledge spread fast within the Swarm. It was decided that to focus on this would be counterproductive to the safety of Lorcar Territory. So besides evading the tendrils/portals and holding Psionic Shields and Wards against them...They were completely ignored. In truth...The Lorcar had no concept of 'Soul' or 'Spirit'. They were all part of the Pseudo-Hive Mind, even death of the flesh rarely actually permanently killed a Lorcar. As far as they truly knew, there wasn't anything to fight, well, not yet anyways. But the real combatants were on their way! Clearly. So for tjose Lorcar nit focused on defenses, which amounted to the small Lorcar Biofleet around Agira...They continued with building their moon of living corpses. Really with the progress they've made so far and the little resistance anymore offered, it shouldn't take too much long for them to finish their creation. A prototype for something to be made far away, for places for the Locusts to rest away from their Maltruse system. Several concepts came to mind as the Capital and two Super Capitals 'chatted' while working. Havens...Homes...But one concept stood out. Really it could be argued that the biggest difference between the concepts attributed to this prototype, to the Lorcar anyway, was entirely semantics...But one thought stood out amongst them, one idea linked to it.
The concept linked to this prototype the three were making...A Hive.